Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| Challenger Fergana | 2019/06/17 07:25 | Shuichi Sekiguchi v Makoto Ochi | 6-4,6-4 |
| Challenger Columbus | 2019/06/11 14:00 | Zsombor Piros v Makoto Ochi | 6-4,7-5 |
| Challenger Little Rock | 2019/06/04 15:00 | Orlando Luz v Makoto Ochi | 6-4,5-7,7-6 |
| Challenger Jerusalem | 2019/05/20 09:15 | Makoto Ochi v Evan King | 6-3,3-6,1-6 |
| Challenger Gwangju | 2019/05/15 02:00 | Makoto Ochi v Evgeny Donskoy | 3-6,4-6 |
| Challenger Gwangju | 2019/05/14 02:00 | Cheng-Peng Hsieh v Makoto Ochi | 6-4,5-7,3-6 |
| Challenger Busan | 2019/05/07 06:20 | Makoto Ochi v Duckhee Lee | 6-7,4-6 |
| Challenger Busan | 2019/05/06 02:00 | Makoto Ochi v Young Seok Lee | 6-3,6-4 |
| ITF M15 Gimcheon | 2019/06/19 01:00 | Jean Thirouin v Cing-Yang Meng | 6-2,6-2 |
| ITF M15 Gimcheon | 2019/06/16 02:00 | Yuta Shimizu v Jean Thirouin | 6-2,6-0 |
| ITF M15 Gimcheon | 2019/06/15 02:00 | Thomas Fancutt v Jean Thirouin | 6-2,3-6,0-6 |
| ITF M15 Gimcheon | 2019/06/14 03:35 | Seon Yong Han v Jean Thirouin | 6-7,2-6 |
| ITF M15 Gimcheon | 2019/06/13 02:30 | Jean Thirouin v Jung-Woong Na | 6-2,6-3 |
| ITF M15 Heraklion | 2019/05/28 09:00 | Vasil Kirkov v Jean Thirouin | 5-7,6-3,6-3 |
| ITF M15 Antalya | 2019/05/24 07:45 | Jean Thirouin v Koray Kirci | 4-6,6-7 |
| ITF M15 Antalya | 2019/05/22 09:40 | Jean Thirouin v Michalis Sakellaridis | 6-3,6-2 |